I put a light in my probe droid. I should have taken pictures of it's assembly, but it's all connected by screws and a washer. The eyes are all separate pieces. I think it's a really underrated figure.
I think what imma do is, get a 3 or 5mm bulb instead of this nano chip. Replace one of the eyes and paint the bulb smoke black clear, so it blends better with the figure.